Free Dunkin Donuts Iced Coffee on May 19th 2026

Dunkin Donuts is offering a free hot or iced coffee for Dunkin Rewards Members with coupon promo code

PROMO CODE WILL BE OUT AT 9:30AM ET

Limit to one million free coffees

Good on May 19th, 2026

Step 1
If you are not yet a Dunkin Rewards Member, sign up here for free first

Step 2
Sign into Dunkin Rewards

Step 3
Enter promo code

Step 4
Under Offers & Rewards the offer for "Free Iced Coffee Reward"

Step 5
Use the Dunkin Mobile App to place an order for a free Iced Coffee in S, M, or L